Kenneth “Ken” Rosenthal, founder of the company that later became known as Panera Bread, has passed away. He was 81.

Rosenthal founded St. Louis Bread Company, which later became the nationwide bakery-cafe chain Kenneth “Ken” Rosenthal, who ...

Panera Bread founder Ken Rosenthal passed away on Friday at the age of 81. He was surrounded by family and leaves behind his wife, Linda “Laya” Rosenthal, and their four children.